Top Page > RP-GL/2 and RTIFF > Using RP-GL/2 > Configuring the RPGL Menu > Setting Items on the RPGL Menu > 21. Horizontal Adjustment
![Illustration of available on both RP-GL and RP-GL/2](../image/glgl2.gif)
![Illustration of available on web printing tool](../image/wpt.gif)
Adjust the length of the print area in the main scanning direction (the direction perpendicular to the paper feed direction) in increments of 0.01% within the following range:
Default: 100.00%
![Illustration of Horizontal Adjustment](../image/cqp006.gif)
Main scanning direction
Paper feed direction